Chewing tobacco, seen here in this 2011 photo, has been a nearly two-century-old habit of many baseball players on the field and in the dugout. Boston passed a citywide ordinance banning all smokeless tobacco products from its sporting venues, effective on April 1, 2016. (Jim Mone/AP)This article is more than 4 years old.

Boston Mayor Marty Walsh signed an ordinance Wednesday banning smokeless tobacco like dip, snuff and chewing tobacco at all city sports venues -- both professional and amateur.

The ban includes Fenway Park, where for decades beloved baseball players have sat and spat dip and other such products in the dugout.

The ordinance, which goes into effect April 1, 2016, carries a $250 fine per offense.

According to a statement from the city, those managing the venues will be primarily responsible for enforcing the ban. Signs will be posted all around venues — from entrances to bullpens and press boxes — notifying players and patrons of the rule change.